CN112335466A - Energy-efficient soil heating system - Google Patents
Energy-efficient soil heating system Download PDFInfo
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- CN112335466A CN112335466A CN202011096270.9A CN202011096270A CN112335466A CN 112335466 A CN112335466 A CN 112335466A CN 202011096270 A CN202011096270 A CN 202011096270A CN 112335466 A CN112335466 A CN 112335466A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/245—Conduits for heating by means of liquids, e.g. used as frame members or for soil heating
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/243—Collecting solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/04—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes with tubes having a capillary structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Sustainable Development (AREA)
- Soil Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sustainable Energy (AREA)
- Greenhouses (AREA)
Abstract
The invention provides an efficient and energy-saving soil heating system, which comprises a heat pipe heat exchanger, a fermentation tank, a high-temperature container heat exchange device, a heat storage water tank and a circulating water pump, wherein the heat pipe heat exchanger is arranged on the fermentation tank; one end of the circulating water pump is connected with the heat storage water tank, the other end of the circulating water pump is connected with the fermentation tank, the fermentation tank is connected with the heat storage water tank through a pipeline to form a loop, one section of the heat pipe heat exchanger is arranged in the soil heating area, and the other section of the heat pipe heat exchanger is arranged in the heat storage water tank. The invention solves the problems of energy consumption, instability, environmental pollution and economy caused by the way that the existing single-stage solar heating system can not continuously heat at night and other complementary heating systems such as electric heating, combustion, heat pump and the like.
Description
Technical Field
The invention relates to an efficient and energy-saving soil heating system, and belongs to the technical field of soil heating systems.
Background
As the greenhouse planting of fruits and vegetables is increasingly popularized, but in winter, due to the fact that the soil temperature is too low, root systems of the fruits and vegetables in the greenhouse are easily frozen and damaged by low temperature, the growth of the fruits and vegetables is not facilitated, and therefore the development of a soil heating technology becomes more important. In most rural areas in the north of China, heating is carried out by using heated brick beds, furnaces, coal-fired boilers and the like, the heat conversion rate of the traditional rural heating mode is low, energy waste is huge, soil is heated unevenly, and environmental pollution is serious, so that the clean heating technology is urgently needed to be popularized in the rural areas in the north. At present, clean heating measures mainly comprise modes of 'changing coal into gas', 'changing coal into electricity', renewable energy sources and the like, but although the schemes of 'changing coal into gas' and 'changing coal into electricity' are clean energy sources, the problems of overhigh price, safe use, difficult pipeline laying in rural areas, NOX pollution and the like still exist.
At present, current soil heating system includes single-stage solar heating system and the complementary solar heating system of multistage, single-stage solar system can not last the heat supply for a long time, and receive duration in sunshine, weather variation's influence, supplementary system all is with modes such as electric heating, burning, heat pump, wherein electric heating and burning mode have resource-wasting and polluted environment scheduling problem, and heat pump performance receives external environment influence great, the problem that the heating volume reduces can appear under adverse weather condition, the exclusive use can make the working costs too high.
Disclosure of Invention
The invention aims to solve the problems of energy consumption, instability, environmental pollution and economy caused by the fact that the existing single-stage solar heating system can not continuously heat at night and other complementary heating systems such as electric heating, combustion, heat pumps and the like, and provides an efficient and energy-saving soil heating system.
The invention provides an efficient and energy-saving soil heating system which comprises a heat pipe heat exchanger, a fermentation tank, a high-temperature container heat exchange device, a heat storage water tank and a circulating water pump, wherein the heat pipe heat exchanger is arranged on the fermentation tank; one end of the circulating water pump is connected with the heat storage water tank, the other end of the circulating water pump is connected with the fermentation tank, the fermentation tank is connected with the heat storage water tank through a pipeline to form a loop, one section of the heat pipe heat exchanger is arranged in the soil heating area, the other section of the heat pipe heat exchanger is arranged in the heat storage water tank, and the high-temperature container heat exchange device is arranged in the heat storage water tank.
Preferably, the heat pipe heat exchanger comprises a heat pipe heat release section, a heat pipe heat insulation section and a heat pipe heat absorption section, the heat pipe heat release section is arranged in the soil heating area, the heat pipe heat absorption section is arranged in the heat storage water tank, and the heat pipe heat insulation section is positioned between the heat pipe heat release section and the heat pipe heat absorption section.
Preferably, the high-temperature heat exchange container comprises an air inlet pipe, an exhaust pipe and a drain pipe, an air inlet of the high-temperature heat exchange container is connected with the fermentation tank through the air inlet pipe, an air outlet of the high-temperature heat exchange container is connected with the interior of the plant greenhouse through the exhaust pipe, high-temperature carbon dioxide gas and water vapor flowing out of the fermentation tank exchange heat through the inside of the container, and meanwhile carbon dioxide gas fertilizer is discharged into the plant greenhouse 1, and the drain pipe is arranged at the bottom of the high-temperature heat exchange container and is used for discharging condensed.
Preferably, a thermocouple and a humidity probe are arranged on the fermentation tank, the humidity probe monitors the humidity condition inside the fermentation tank in real time, and if the humidity inside the fermentation tank is greatly increased, the risk that water leakage may occur in a water pipe in the fermentation tank is determined, so that the water pipe can be repaired in time.
Preferably, the electromagnetic valve is positioned between the circulating water pump and the fermentation tank, the thermocouple monitors the temperature condition in the fermentation tank in real time, and when the temperature of the fermentation tank is too low, a signal is transmitted to the electromagnetic valve so as to block the water from entering, and the temperature of the fermentation tank is raised back through the fermentation of microorganisms to continue water supply.
The high-efficiency energy-saving soil heating system has the beneficial effects that:
1. the high-efficiency energy-saving soil heating system provided by the invention utilizes cheap and easily-obtained straw, excrement and other raw materials to form the fermentation tank, fully utilizes high-temperature gas discharged by the fermentation tank and the oxidative decomposition heat production of microorganisms of the high-temperature gas, combines the characteristics of high-efficiency heat transfer of the heat pipe heat exchanger and self-adaptive work regulation of the heat pipe heat exchanger, and further forms a high-efficiency energy-saving system by taking water as an intermediate heat transfer medium, thereby realizing energy conservation, emission reduction and continuous heating throughout the day.
2. The high-efficiency energy-saving soil heating system takes the fermentation tank composed of cheap straws and urea as a heat source, compared with other heat sources, the fermentation tank can continuously generate heat through the activity of microorganisms per se and can also generate high-temperature gas, wherein the carbon dioxide gas can be used as a gas fertilizer, in addition, whether the heat is taken from the fermentation tank can be automatically controlled through opening and closing of a valve, the self-adaptive controllable heat taking is realized, and the characteristics of high-efficiency heat transfer of a heat pipe heat exchanger and self-adaptive work of the heat pipe heat exchanger are combined, so that the high-efficiency energy-saving system is formed. The solar energy heating system solves the problems of energy consumption, environmental pollution and economy caused by the fact that a single-stage solar heating system cannot continuously heat at night and other complementary heating systems such as electric heating, combustion, heat pumps and the like.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.
In the drawings:
FIG. 1 is a side view of an energy efficient soil heating system according to the present invention;
FIG. 2 is a top view of an energy efficient soil heating system according to the present invention;
the system comprises a plant greenhouse 1, a soil heating area 2, a fermentation tank 3, a heat pipe heat release section 4, a heat pipe heat insulation section 5, a heat pipe heat absorption section 6, a high-temperature heat exchange container device 7, an air inlet pipe 8, an air outlet pipe 9, a water outlet pipe 10, a circulating water pump 11, an electromagnetic valve 12, a thermocouple 13, a humidity probe 14 and a heat storage water tank 15.
Detailed Description
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings:
the first embodiment is as follows: the present embodiment is explained with reference to fig. 1-2. The high-efficiency energy-saving soil heating system comprises a heat pipe heat exchanger, a fermentation tank 3, a high-temperature container heat exchange device 7, a heat storage water tank 15 and a circulating water pump 11;
one end of the circulating water pump 11 is connected with the heat storage water tank 15, the other end of the circulating water pump is connected with the fermentation tank 3, the fermentation tank 3 is connected with the heat storage water tank 15 through a pipeline to form a loop, one section of the heat pipe heat exchanger is arranged in the soil heating area 2, the other section of the heat pipe heat exchanger is arranged in the heat storage water tank 15, and the high-temperature container heat exchange device 7 is arranged in the heat storage water tank 15. The plant greenhouse 1 is arranged above the soil heating area 2.
The heat pipe heat exchanger comprises a heat pipe heat release section 4, a heat pipe heat insulation section 5 and a heat pipe heat absorption section 6, wherein the heat pipe heat release section 4 is arranged in the soil heating area 2, the heat pipe heat absorption section 6 is arranged in the heat storage water tank 15, and the heat pipe heat insulation section 5 is arranged between the heat pipe heat release section 4 and the heat pipe heat absorption section 6.
High temperature container heat transfer device 7 includes intake pipe 8, blast pipe 9 and drain pipe 10, high temperature container heat transfer device 7's air inlet passes through intake pipe 8 with fermentation vat 3 to be connected, and the gas vent is connected through blast pipe 9 in with plant big-arch shelter 1, and the high temperature carbon dioxide gas and the vapor that flow out in 3 from the fermentation vat are through the inside heat transfer of container, simultaneously to 1 indoor discharge carbon dioxide gas fertilizer of plant big-arch shelter, 7 bottoms of high temperature container heat transfer device are equipped with drain pipe 10, in time discharge comdenstion water.
The fermentation tank 3 is provided with a thermocouple 13 and a humidity probe 14, the humidity probe 14 monitors the humidity inside the fermentation tank 3 in real time, and if the humidity inside the fermentation tank 3 is greatly increased, the risk that water leakage may occur in a water pipe in the fermentation tank 3 is determined, so that the water pipe can be repaired in time. The electromagnetic valve 12 is positioned between the circulating water pump 11 and the fermenting tank 3, the thermocouple 13 monitors the temperature condition in the fermenting tank 3 in real time, and when the temperature of the fermenting tank 3 is too low, a signal is transmitted to the electromagnetic valve 12, so that water is prevented from entering, and the fermenting tank 3 is fermented by microorganisms to raise the temperature and continue to feed water. The two assist functions ensure the good operation of the fermentation tank and realize the self-adaptive control of heat extraction from the fermentation tank.
The working principle and the specific operation process of the high-efficiency energy-saving soil heating system are as follows:
one end of the circulating water pump 11 is connected with the heat storage water tank 15, the other end of the circulating water pump is connected with the fermentation tank 3, and the fermentation tank 3 is connected with the heat storage water tank 15 through a pipeline to form a loop. The high-temperature heat exchange container device 7 is arranged in a heat storage water tank 15, the inlet of the high-temperature heat exchange container device is connected with the fermentation tank 3 through an 8-air inlet pipe, the outlet of the high-temperature heat exchange container device is connected with a 9-exhaust pipe in the greenhouse, and a 10-drain pipe is arranged at the bottom of the high-temperature heat exchange container device. The heat pipe heat release section 4 of the heat pipe device is arranged in the soil heating area 2, the heat pipe heat absorption section 6 is arranged in the heat storage water tank 15, and the heat pipe heat insulation section 5 is arranged in the soil. A thermocouple 13 and a humidity probe 14 are arranged in the fermentation tank 3 and used for monitoring the temperature and humidity inside the fermentation tank 3.
The circulating water pump 11 is started, water in the heat storage water tank 15 is introduced into the fermentation tank 3 for heat exchange through the driving of the circulating water pump 11, and then the heated hot water returns to the heat storage water tank 15 to form an internal circulation.
The high-temperature heat exchange container device 7 is obliquely arranged in a heat storage water tank 15, high-temperature carbon dioxide and water vapor discharged from the fermentation tank 3 enter the high-temperature heat exchange container device through an air inlet pipe 8 to heat water in the water tank, the cooled carbon dioxide enters the greenhouse from an exhaust pipe 9 to provide gas fertilizer, and condensed water is discharged through a drain pipe 10.
The heat pipe device heat release section is arranged in a soil heating area 2, the heat pipe heat absorption section 6 is arranged in a heat storage water tank 15, the heat pipe heat insulation section 5 is arranged in soil, after water in the heat storage water tank 15 is heated through heat exchange in a fermentation tank 3, liquid working media in the heat pipe heat absorption section 6 of the heat pipe absorb heat in the heat storage water tank 15 and change into a gaseous state, then the heat pipe heat release section 4 is entered, a large amount of latent heat is released by the gaseous working media, the heat is released to low-temperature soil through fins on the heat release section, then the gaseous working media are condensed and then return to the 6-heat absorption section again through a capillary structure in the heat pipe, and therefore the heating.
The thermocouple 13 monitors the temperature condition in the fermentation tank 3 in real time, and transmits a signal to the electromagnetic valve 12 when the temperature of the fermentation tank 3 is too low, so that the water is blocked from entering, and the water is continuously introduced when the temperature of the fermentation tank 3 rises. The humidity probe 14 monitors the humidity inside the fermentation tank 3 in real time, and if the humidity inside the fermentation tank 3 is greatly increased, the risk that water leakage may occur in a water pipe in the fermentation tank 3 is determined, and then timely repair is carried out. The two assist functions ensure the good operation of the fermentation tank.
The above-mentioned embodiments further explain the objects, technical solutions and advantages of the present invention in detail. It should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the present invention, and that the reasonable combination of the features described in the above-mentioned embodiments can be made, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An efficient and energy-saving soil heating system is characterized by comprising a heat pipe heat exchanger, a fermentation tank (3), a high-temperature container heat exchange device (7), a heat storage water tank (15) and a circulating water pump (11);
circulating water pump (11) one end is connected heat storage water tank (15), and fermentation vat (3) are connected to the other end, and fermentation vat (3) are through pipe connection heat storage water tank (15) again, form the return circuit, the soil zone of heating (2) are arranged in to one section of heat pipe exchanger, and in heat storage water tank (15) were arranged in to one section, high temperature container heat transfer device (7) were arranged in heat storage water tank (15).
2. The efficient and energy-saving soil heating system according to claim 1, wherein the heat pipe heat exchanger comprises a heat pipe heat release section (4), a heat pipe heat insulation section (5) and a heat pipe heat absorption section (6), the heat pipe heat release section (4) is arranged in the soil heating area (2), the heat pipe heat absorption section (6) is arranged in the heat storage water tank (15), and the heat pipe heat insulation section (5) is arranged between the heat pipe heat release section (4) and the heat pipe heat absorption section (6).
3. The efficient and energy-saving soil heating system according to claim 1, wherein the high-temperature container heat exchange device (7) comprises an air inlet pipe (8), an exhaust pipe (9) and a drain pipe (10), an air inlet of the high-temperature container heat exchange device (7) is connected with the fermentation tank (3) through the air inlet pipe (8), an air outlet of the high-temperature container heat exchange device is connected with the interior of the plant greenhouse (1) through the exhaust pipe (9), high-temperature carbon dioxide gas and water vapor flowing out of the fermentation tank (3) exchange heat through the interior of the container, carbon dioxide gas fertilizer is discharged into the plant greenhouse (1) at the same time, and the drain pipe (10) is arranged at the bottom of the high-temperature container heat exchange device (7) and is.
4. The efficient and energy-saving soil heating system according to claim 1, wherein a thermocouple (13) and a humidity probe (14) are arranged on the fermenting tank (3), the humidity probe (14) monitors the humidity inside the fermenting tank (3) in real time, and if the humidity inside the fermenting tank (3) is greatly increased, the risk of water leakage of a water pipe in the fermenting tank (3) is determined, so that the water pipe can be repaired in time.
5. The high-efficiency energy-saving soil heating system according to claim 3, wherein the electromagnetic valve (12) is positioned between the circulating water pump (11) and the fermenting tank (3), the thermocouple (13) monitors the temperature condition in the fermenting tank (3) in real time, when the temperature of the fermenting tank (3) is too low, a signal is transmitted to the electromagnetic valve (12) so as to block the water from entering, and the fermenting tank (3) raises the temperature back through the fermentation of microorganisms and continues to feed water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202011096270.9A CN112335466A (en) | 2020-10-14 | 2020-10-14 | Energy-efficient soil heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011096270.9A CN112335466A (en) | 2020-10-14 | 2020-10-14 | Energy-efficient soil heating system |
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| CN112335466A true CN112335466A (en) | 2021-02-09 |
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| CN202011096270.9A Pending CN112335466A (en) | 2020-10-14 | 2020-10-14 | Energy-efficient soil heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114538978A (en) * | 2022-03-17 | 2022-05-27 | 甘肃省科学院生物研究所 | Circulating heat compensation type organic fertilizer fermentation device in cold area and use method thereof |
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Application publication date: 20210209 |
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